Hebrews 9:7

but into the inner only the High Priest goes, and that but once a year, and never without taking the blood of a victim, which he offers on his own behalf, and on behalf of the errors of the People.

Hebrews 5:2-3

And he is able to sympathize with the ignorant and deluded, since he is himself subject to weakness,

Hebrews 7:27

one who has no need to offer sacrifices daily as those High Priests have, first for their own sins, and then for those of the People. For this he did once and for all, when he offered himself as the sacrifice.

Treasury of Scripture Knowledge

Summary

And Aaron shall offer his bullock of the sin offering, which is for himself, and make an atonement for himself, and for his house.

Which

An atonement, for himself

Bible References

Which

Hebrews 9:7
but into the inner only the High Priest goes, and that but once a year, and never without taking the blood of a victim, which he offers on his own behalf, and on behalf of the errors of the People.

An atonement, for himself

Hebrews 5:2
And he is able to sympathize with the ignorant and deluded, since he is himself subject to weakness,